000009795 001__ 9795 000009795 005__ 20141205153155.0 000009795 04107 $$aeng 000009795 046__ $$k2008-10-12 000009795 100__ $$aD'Ambrisi, Angelo 000009795 24500 $$aSeismic Performance of Irregular 3D RC Frames 000009795 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering 000009795 260__ $$b 000009795 506__ $$arestricted 000009795 520__ $$2eng$$ahis paper deals with seismic performance of an irregular mass-eccentric 3D RC framed structure subjected to seismic actions. The sample structure has three double-span and six-storey plane frames and it is stiffness-regular both in plan and in elevation. A very detailed model has been set through the computer code ZeusNL, which takes into account all the main characteristics of inelastic behaviour of rc structures. The seismic input has been defined by considering seven ground motions reproducing the design specrum provided by EC8 and scaled in order to impose different values of PGA. Seismic response of the structure has been analyzed by performing a nonlinear dynamic analysis. In the analyses, mass center has been shifted from stiffness center at a distance going from zero to 15% of the relevant building plan dimension. Seismic responses, expressed in terms of top displacement and interstorey drift, have been evaluated for each selected value of PGA and eccentricity. 000009795 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000009795 653__ $$aIrregular structures, mass irregularity, inelastic analysis, 3d rc frames. 000009795 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15 000009795 720__ $$aD'Ambrisi, Angelo$$iDe Stefano, Mario$$iViti, Stefania 000009795 8560_ $$ffischerc@itam.cas.cz 000009795 8564_ $$s266278$$uhttps://invenio.itam.cas.cz/record/9795/files/05-01-0116.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0116. 000009795 962__ $$r9324 000009795 980__ $$aPAPER